In this episode of ShopTalk:Why not check refa cap first? - Dave explains not always checking capacitors before powering up.Detecting electrical noise? - Tips on spotting interference using a TV or ham radio feedback.Learning about middle-aged hardware failures? - Dave suggests a video on 2000s capacitor issues.Variac use and capacitor failure? - Depends on capacitor age and voltage rating.Replacing refa caps? - Modern aluminum capacitors are recommended.Electrolytic caps as substitutes? - Not suitable, modern alternatives preferred.Other retro gear failure points? - Electrolytic capacitors degrade over time.Selenium diode failure experience? - Dave hasn’t toasted one but recalls smoking a diode.Capacitor refresh procedure? - Electrolytic caps can be reformed with gradual voltage.AI and NASA coding standards? - AI could follow coding rules if given restrictions.Telling a child about autism? - Dave shares timing depends on when it impacts them.Starting vintage electronics repair? - Suggests Commodore 64s and Adrian’s Digital Basement.Pinning apps in Windows 11? - Likely low demand or technical limits, workarounds exist.Hacker’s diet by John Walker? - Dave hasn’t heard of it.DECUS tapes ownership? - Might have some among TK50 tapes, unconfirmed.Commodore 64 load commands? - Explains ,8 vs ,8,1 for memory loading.LCD board on bench? - A mesmerizer running night driver software.AI controlling Tempest knob? - Direct memory input mimics spinner movement.Spiral lamp model? - Artica Swirl, available at Home Depot.Smart alec shirt source? - Common geek shirts found on Amazon or GeeksOutfit.com.